25407137

素因数分解:

$7^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 30697920

約数和(自身を除く): 5290783

約数列:

[1, 7, 49, 67, 71, 109, 469, 497, 763, 3283, 3479, 4757, 5341, 7303, 7739, 33299, 51121, 54173, 233093, 357847, 379211, 518513, 3629591, 25407137]

約数ペア:

[(1, 25407137), (7, 3629591), (49, 518513), (67, 379211), (71, 357847), (109, 233093), (469, 54173), (497, 51121), (763, 33299), (3283, 7739), (3479, 7303), (4757, 5341)]